import React, { useEffect, useState, useRef, useContext } from 'react'
import { Button, Form, Input, Table, Modal } from 'antd';
import axios from 'axios';
import { DeleteOutlined, EditOutlined, ExclamationCircleOutlined } from '@ant-design/icons';

const { confirm } = Modal;
export default function NewsCategory() {
  const [dataSource, setdataSource] = useState([])
  useEffect(() => {
    axios.get('/categories').then(res => {
      setdataSource(res.data)
    })
  }, [])

  const handleSave=(record)=>{
    console.log(record);
    setdataSource(dataSource.map(item=>{
      if(item.id===record.id){
        return{
          id:item.id,
          title:record.title,
          value:record.title

        }
      }
      return item
    }))

    axios.patch(`/categories/${record.id}`,{
      title:record.title,
      value:record.title
    })
  }

  const columns = [
    {
      title: 'ID',
      dataIndex: 'id',
      render: (id) => {
        return <b>{id}</b>
      }
    },
    {
      title: '栏目名称',
      dataIndex: 'title',
      onCell: (record) => ({
        record,
        editable: true,
        dataIndex: 'title',
        title: '栏目名称',
        handleSave:handleSave
      }),
    },
    {
      title: '操作',
      render: (item) => {
        return <div>
          <Button type="danger" shape="circle" icon={<DeleteOutlined />} onClick={() => showDeleteConfirm(item)} />
        </div>
      }
    }
  ];


  const showDeleteConfirm = (item) => {
    confirm({
      title: '你确定要删除吗？',
      icon: <ExclamationCircleOutlined />,
      // content: 'Some descriptions',
      okText: 'Yes',
      okType: 'danger',
      cancelText: 'No',
      onOk() {
        // console.log('OK');
        deleteMethod(item)
      },
      onCancel() {
        console.log('Cancel');
      },
    });
  };
  const deleteMethod = (item) => {
    console.log(item);

    setdataSource([...dataSource])
    axios.delete(`/categories/${item.id}`)

  }


  const EditableContext = React.createContext(null);
  const EditableRow = ({ index, ...props }) => {
    const [form] = Form.useForm();
    return (
      <Form form={form} component={false}>
        <EditableContext.Provider value={form}>
          <tr {...props} />
        </EditableContext.Provider>
      </Form>
    );
  };
  const EditableCell = ({
    title,
    editable,
    children,
    dataIndex,
    record,
    handleSave,
    ...restProps
  }) => {
    const [editing, setEditing] = useState(false);
    const inputRef = useRef(null);
    const form = useContext(EditableContext);
    useEffect(() => {
      if (editing) {
        inputRef.current.focus();
      }
    }, [editing]);
    const toggleEdit = () => {
      setEditing(!editing);
      form.setFieldsValue({
        [dataIndex]: record[dataIndex],
      });
    };
    const save = async () => {
      try {
        const values = await form.validateFields();
        toggleEdit();
        handleSave({
          ...record,
          ...values,
        });
      } catch (errInfo) {
        console.log('Save failed:', errInfo);
      }
    };
    let childNode = children;
    if (editable) {
      childNode = editing ? (
        <Form.Item
          style={{
            margin: 0,
          }}
          name={dataIndex}
          rules={[
            {
              required: true,
              message: `${title} is required.`,
            },
          ]}
        >
          <Input ref={inputRef} onPressEnter={save} onBlur={save} />
        </Form.Item>
      ) : (
        <div
          className="editable-cell-value-wrap"
          style={{
            paddingRight: 24,
          }}
          onClick={toggleEdit}
        >
          {children}
        </div>
      );
    }
    return <td {...restProps}>{childNode}</td>;
  };
  return (
    <div>
      <Table dataSource={dataSource} columns={columns} pagination={{
        pageSize: 5
      }}
        rowKey={item => item.id}
        components={{
          body: {
            row: EditableRow,
            cell: EditableCell,
          },
        }
        }
      />;
    </div>
  )
}
